The youngest Kardashian sister made the bittersweet move back to Los Angeles after her husband Lamar Odom was released from the Dallas Mavericks on Sunday's Keeping Up With the Kardashians. Khloe, 28, wanted Odom to focus on training during his time off, but became overwhelmed by all the work she had to do to unpack.

Pregnant Kourtney, 33, and Kim Kardashian, 31, were very excited to spend time with their sister again. They wanted her and Odom, 32, to travel to NYC to celebrate the opening of Scott Disick's RYU Japanese restaurant — no excuses acceptable.

"I literally just got back to L.A. and I'm being asked to go to New York for Scott's restaurant opening," Khloé explained. "But what my family doesn't get is I'm going through a million different emotions in my head."

The sisters sat down for a heart to heart, but it turned into a big fight. Kim and Kourtney felt Khloe was focusing too much on Odom and not her family. Off camera, Khloe said, "You two are calling me out? Kim, your system hasn't really worked. And Kourtney, you and your boyfriend don't even sleep in the same room anymore. So, I have to do what's best for me in my marriage."

When Kim and Kourtney brought up Khloe missing Christmas last year, Khloe said, "Fine, no exceptions next year. F–k off."

"You're very family oriented with the Odoms," Kim said. "You're officially an Odom."

Meanwhile, Disick, 29, travels to NYC with Rob Kardashian to host a girl's Sweet 16 birthday party. Rob worried Disick would be too inappropriate, but was surprised to discover Disick was on his best behavior.

"I'm pretty positive that when my daughter arrives in this world I will do anything to make her happy," the second-time dad-to-be said during the party. "I think there's a lot of things I need to change about myself, to make me a great father, especially to a daughter, and I want to work on those things now."

And on Sunday, Disick and Kourtney welcomed their daughter, Penelope Scotland Disick. "The entire Kardashian/Jenner clan was at the hospital and everyone was super excited!" a source told Us Weekly. Disick and Kourtney, who have been dating for five years, are already parents to their son, Mason, 2.

During Part 2 of Keeping Up With the Kardashians Monday night, Kim's boyfriend, Kanye West, will make his big debut.